D-ring



FIG. 1 is a is a perspective view of a D-ring (the broken line showingof the strap is for illustrative purposes only and does not form part ofthe claim);

FIG. 2 is a front plan view thereof (the back view is identical to thefront);

FIG. 3 is a left side view thereof (the right side is identical to theleft);

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

CLAIM The ornamental design for a D-ring, as shown and described.